It gets a little silly in such a high-level environment to have to type something like “op(‘select_image’)[0,0]” just to get a file url in a dat into a file url parameter of another operator.
If a dat has only one line (string) or one cell (table) it would be great to be able to drag-and-drop export it onto other operators regardless of what it technically means, casting and/or referencing it for you. It’s a really common operation and techniques like this are what makes node programming so great.